Hello  @rizkirmdhn 

If camera can not do ONVIF streaming,

• Please check if you you are using  Tapo care  or SD card recording for the camera at the same time.  

The Camera supports two of the three functions among Tapo Care/SD card Recording/NVR (NVR means ONVIF or RTSP streaming here) working at the same time and here is an QA explaining this  Q3.4: Why can’t I use Tapo Care, SD card, and NVR at the same time?

• Try to factory reset the tapo camera to clear the old settings and try ONVIF connection again. 

It is recommended to test one third party onvif or rtsp software at a time, not use multiple apps or that will run out of the streams of camera. 

If still the same, please enable diagnose mode for the camera, reproduce the the problem and help collect the camera log 

How to Get the Log of Tapo Camera